Flynn believes that the reason for the rapid rise in IQ over the last 50 years is due to
A)the prevention of more and more birth defects and birth injuries.
B)an improvement in physical fitness in Western, industrialized countries.
C)the diversity created by the increased immigration that has taken place during the same time period.
D)modern society becoming more complex and requiring more abstract, "scientific" skills.

Question

Quizplus · Accepted Answer

James R. Flynn observed that IQ scores have been increasing over the last century, a phenomenon now known as the Flynn Effect. He attributed this rise not to genetic improvements but to environmental factors, particularly the increasing complexity of the modern world which demands more abstract thinking and problem-solving skills. This shift towards more cognitively demanding environments, including changes in education and technology, is believed to stimulate intellectual development, leading to higher IQ scores across populations.

Flynn Believes That the Reason for the Rapid Rise in IQ